有赞开发随笔

uniapp引入vant 组件 vanButton 引用错误,仅支持 import 方式引入组件 构建npm 页面跳转 启动本地数据 有赞商城小程序使用教程 使用vant组件 购物车 errno: -4082, buy qiang qiangbuy 设置数据 React.createElement: type is invalid -- expected a string index.jsx: Expected corresponding JSX closing tag for <img> ReferenceError: FieldSet is not defined Identifier 'useState' has already been declared React does not recognize the classNam prop on a DOM element Invalid hook call. Hooks can only be called inside of the body of a function component created不能调用 setData TypeError: Cannot read property 'props' of undefined Missing semicolon form = Form.useForm(FormStrategy.View); useState is not a function useCallback is not defined Button is not defined form方案一 props is not defined value_i super this_state Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null. Expected onClick listener to be a function, instead got a value of string type. getzhi is not defined this.setStatus is not a function this.state is null onClick_props fill slice深拷贝 concat Cannot update during an existing state transition (such as within render). Render methods should be a pure function of props and state this.props.onClick is not a function The above error occurred in the <Skt> component The above error occurred in the <Bight> component onClick assignment to undeclared variable hispldy Each child in a list should have a unique "key" prop. Module not found: Error: Can't resolve './react' in 页面空白 SyntaxError: index915.jsx: Unexpected token Identifier 'PropTypes' has already been de clared Identifier 'Profile' has already been decl ared JSX value should be either an expression or a quoted JSX text react__WEBPACK_IMPORTED_MODULE_9__.PropTypes is undefined SyntaxError: index1.jsx: Missing semicolon function map import from function 生成数组 使用两个循环来渲染出棋盘的格子，而不是在代码里写死 Nothing was returned from render Uncaught TypeError: this is undefined if替代 string refs. We recommend using useRef() instead Uncaught ReferenceError: useRef is not defined dangerouslySetInnerHTML handleClick 注释代码 Invalid DOM property for. Did you mean htmlFor Received false for a non-boolean attribute className. style React.createClass is not a function '$' is not defined this.getDOMNode is not a function Autocomplete react and webpack react3\node_modules\babel doesn't exist babel-loader@8 requires Babel 7.x options has an unknown property 'progress'. These properties are valid: webpack cli Unable to load '@webpack-cli/serve' command npm install babel-preset-react-hmre --save-dev "dev": "webpack-dev-server --hot --mode development", npm run dev // Imports Error: Cannot find module 'webpack-cli/bin/config-yargs' super() outside of class constructor Error: Cannot find module 'webpack-cli/bin/config-yargs'two TypeError: Cannot read property 'length' of undefined configuration.module has an unknown property 'resolve'. These properties are valid Please use eslint-webpack-plugin Class Profile extends React.Component Uncaught ReferenceError: domcument is not defined Profile ...user Profile document.body.appendChild react.PropTypes is undefined ReferenceError: propTypes is not defined Warning: Component Profile declared PropTypes instead of propTypes. Did you misspell the property assignment? state Uncaught TypeError: this is undefined componentDidMount Component Hobby declared PropTypes instead of propTypes. Did you misspell the property assignment this.state.hobbis.map function Hobby 跳转为空白hobbis.push(this.refs.hobby) You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file 空白排查 SyntaxError: ItemEditor/index.jsx: Unexpected token ...item Warning: Failed prop type: The prop onCancel is marked as required in ItemEditor, but its value is undefined Uncaught TypeError: _uuid2.default is undefined a标签的onclick事件触发请求